Combination boiler and burner.



DAVID nurmouens, or OAKLAND, ciuirronnm.

COMBINATION BOILER AND- BURNER aoiasos.

specification of ,Letters Patent.

Patented Feb. 6, 1912.

Application filed February 21, 1911. Serial No. 609,978.

Figure 1- is a vertical sectional View,

through the improved boiler. Fig. 2 is a transverse sectional viewthrough the boiler. Fig. 3 is an enlarged sectional View through theburner which is used in connection with this boiler. Fig. 4 is anenlarged fragmentary section taken along the lines XX and Y -Y in Fig.1.

Referring to the accompanying drawings by numerals it will be seen thatthis boiler comprises a water chamber 1 which is supported by the stand2 and is provided with an upper cap 3 and a bottom 4. The cap 3 andbottom 4 are provided with centrally located openings which areconnected by means of a-heating chamber v5. The heating chamber has anupper flange 6 which is positioned within the boiler and a lower flange7 which is positioned beneath the bottom 4. Any suitable securing meanssuch for instance as the rivets 8 are used to secure the heating chamberin place. A cylinder 9 surrounds the heating chamber 5 and is providednear its upper end with openings 10 and near its lower end with openings11 which permit water to pass from the water chamber 1 into the spacebetween the cylinder 9 and the heating chamber 5. A water coil 12 ispositioned in the heating chamber and has its inlet end 13 passedthrough the wall of the heating chamber and in alinement with one of theopenings 11. The outlet end 1 1 passes through the upper'portion of theheating chamber and is in aline 5O ment with one of the openings 10. Apendent annular piece 15 is provided 'with a flange 16 at its upper edgeby means of which it is secured to the flange 7 of the heating chamberand is provided with an opening 17 located near the upper edge. A burneris secured within the piece 15 by means of the set screws 18 and has itsupper 1 edge on a level with the opening 17 so that a match can beinserted through the opening 17 to light the burner.

The burner comprises a tapered base 19 which fits upon a supply pipe 20and is 25. A cap 26 rests upon the wirescreen above the shoulder 24 andis provided with a tapered upper portion 27 which concentrates thegas.

The gas passes through the pipe 20.into the base 19 of the burner whereit is mixed with air which is fed through the inlet 21. The air and gasare prevented from passing from the burner too quickly by the screen 25so that the gas is thoroughly mixed with the air. After the air and gaspass the Wire and pass out through the opening in the cap 26, it can belighted by a match inserted through an opening 17. A water inlet-pipe 28enters the water chamber 1 near the base of the water chamber, and adraw off pipe 29 enters the water chamber through the top 3. A collar 30is secured to the top 3 and surrounds the opening which communi: cateswith the heating chamber so that a pipe leading to a chimney can beconnected with the heating chamber.

1 In the operation of this device the water is fed through the pipe 28into the chamber 1. As the chamber 1 is filled, the water passesthroughthe opening 11 into the water coil 12 and also int-0 the space betweenthe heating chamber and the cylinder 9. After the chamber 1 is filledthe burner is lighted and the water coil becomes heated. As the water isheated in the coil it moves upwardly and out through the upper end I.the heating chamber and will thus cause the water in the coils to beheated faster as the heat is held almost entirely in the heat- More ingchamber and does not pass out to the Water in thewater chamber. Whenwater is drawn oifthrou h the pipe 29, more water enters through thepipe 28 to take its place. It should be noted that the casing 9 isprovided with beveled upper and lower ends which fit the cont-our of thetop and bottom of the boiler, and that the upper portionjof thocasingsurrounds the flange 6 so that it is held in spaced relation to'theheating chamber. p

It should also be noted that the beveled lower edge keeps the lowerportion of the casing in place and prevents it having any movementwhatsoever.

What I claim is 1. A boiler comprising a water chamber, a heatingchamber positioned within said water chamber, a casing surrounding saidheating chamber and provided with openings in its upper and lowerportions, a heating coil positloned in said heating chamber and havinits inlet and outlet ends positioned in a inement with said openin s,and means for heating said heating cham er.

2. A boiler comprising a water chamber, a heating chamber, a casingsurrounding said heating chamber and positioned in spaced relatlonthereto to provide a space between said chamber and easing, said casingbeing provided with means for admitting the passage of water from saidwater chamber into the space between said heatin chamber and saidcasing, a coil within said heating chamber having its inlet and outletpositioned adjacent said water passage means,and means for heating saidheating chamber.

In testimon whereof I affix my signature in presence 0 two witnesses.

- DAVID BURROUGHS.

Witnesses: H. C. SCHROEDER,

HA'r'rm C. BURROUGHS.

